Cannot remove the flexi beater

If it is a ksm103 there should be a spring on the shaft, it should look similar to this: http://www.mendingshed.com/kacentershaft.html

When adjusting the screw you should be turning it out, which will make the beater closer to the bottom of the bowl, when properly adjusted you should be able to place a dime in the bowl, and the flat beater should just move it around barely. that would be about 1/16" in clearance.

Hi Mary, There is no such thing as a beater to bowl screw. If you screw the beater to the bowl then it cannot turn without also turning the bowl. Here's a link to an exploded view
https://www.manualslib.com/manual/413887/Kitchenaid-Kt2651xww.html

Do you mean the beater is not touching the bottom of the bowl? AS in there is a gap between the beater and the bottom of the bowl so it is not mixing all the ingriedients?
If you have a Tilt-head style mixer, you can adjust the beater/bowl clearance by turning out the adjusting screw. Place your bowl on the bowl screw cap, Place the flat beater on the agitator shaft and lower the head of the mixer so the beater is at the bottom of the bowl. There should be a 1/16" clearance between the bowl and the beater, if the beater is too close to the bowl turn in the adjusting screw, and if the beater is too far away turn out the adjusting screw. The adjusting screw can be located by tilting the head of the mixer back, and in the neck of the mixer you will see a flat head adjusting screw.
However if you have a bowl lift mixer and the bowl is too far from the mixer there are a few different way to fix that problem. If the bowl and beater are too far apart start by adjusting the adjustment screw. On this mixer the adjustment screw is under the head. Remove the bowl, and beater and lay the mixer on its back. You should be able to see under the head a screw sticking out, it does not have a head, but a little slot in the screw, use a flat head screw and adjust the beat 1/4 turn. Put the beater and bowl back on and test mixer to see if it the beater has a 1/16" clearance. If it doesn't adjust the screw and 1/4 turn. If after adjusting the screw the beater and bowl still have too much clearance use a mallet and tap both sides of the yoke arm up evenly until 1/16" beater to bowl clearance is met.
You can use the same dime test in the bowl to make sure you have the correct 1/16" measurement for the beater/bowl distance.
Thank you,
Colleen
MendingShed.com
800-339-9297

The best way is to wrap a hot towel around the beater head, you have to get it hot to melt the "Gunk" that is acting like glue, I have actually had to use a torch once or twice, you can polish the stainless steel up again but you have to keep it away from the powder coated finish or it will bubble up and ruin the finish. The best but longest way is a hair dryer and a squirt gun, get it hot squirt it heat again, do it once or twice usually loosens it up and you can get the beater off, once you do use a non stick spray in the beater head before you use it and do not ever leave your beater on the mixer in the future.

It sounds like you have two problems. First, the black marks are usually because of a reaction between the beater and certain chemicals used in dishwashers. Try washing the beater by hand and scrubbing it throughly to remove any residue. If this works, don't use the dishwasher again. You could also buy a plastic coated beater.

It also sounds like the bowl height needs adjusting. There is a screw just under the head for this.

Hi, KLOEHR, your beater will not lengthen by losing a screw. However, if you lost your Beater to Bowl Clearance adjustment screw, then it might appear that your beater had ‘grown’ because now the beater may be touching the bottom of your mixing bowl, where previously it had not. Simply said, the beater didn’t grow the mixer head drooped.
You don’t say if you have a ‘tilt-head’ or a ‘bowl-lift' mixer, but you can easily download a PDF version of your Owners Manual from the KA website at: (http://www.kitchenaid.com/flash.cmd?/#/page/home).
Click on Customer Care>Locate Manuals& Guides> and enter the 6 character model number (in your case, use KSM5PS)and select the last file listed that appear under Owners Manuals: KSM5PSWW0.pdf (2930.74 KB) and save that file to your PC. You’ll need to have Adobe Reader to be able to open it. Turn to Page 11 and you will find the instructions for adjusting the mixer head height. I have extracted the instructions below:
Beater to Bowl Clearance
Your mixer is adjusted at the factory so that the flat beater just clears the bottom of the bowl. If for any reason, the flat beater hits the bottom of the bowl or is too far away from the bowl, clearance.
Tilt-Head models
• Unplug mixer.
• Lift motor head.

• Turn screw (A) SLIGHTLY counter clockwise (left) to raise flat beater or clockwise (right) to lower flat beater.
• Make adjustment with flat beater, so it just clears surface of bowl.
If you over adjust the screw, the bowl lock lever may not lock into place.

Bowl-Lift models
• Unplug mixer.
• Place bowl lift handle in down position.

• Turn screw (B) SLIGHTLY counter clockwise (left) to raise flat beater and clockwise (right) to lower flat beater.
•Make adjustments with flat beater, so it just clears surface of bowl.
If you find the adjustment screw missing, you’ll need to replace it. But now you’ll need
I hope this helps! –Howard, Burke, VA
If this solution has helped you, please rate it, thanks! - hslincoln

The model number doesn't really exist other than the fact that the stainless steel bowl is available for just about every Chef made. My own KM300 has a stainless steel bowl for example that came as standard - it however is the same bowl you can order from Kenwood or EBay under the A701/A901 model - all bowls from Kenwood can be fitted on the Chef model with the exception of the Major model which is a larger and taller machine.

Your beater to bowl clearance has come out of alignment. This can happen naturally over time and with normal use of the appliance. This is something you may correct from home using a flathead screwdriver.

Unplug the mixer, with the bowl and flat beater removed. Tilt the mixing head back as far as the machine will allow. In the exposed hinge, behind where the bowl would normally sit, you will see a 3/8 screw exposed. Turn this screw half a turn counterclockwise (to your left) in order to raise the flat beater from the bottom of the bowl.

This may take a few attempts until the beater is clearing the bottom of the bowl again. If the adjustment screw will no longer turn, do not force it. It is only designed to move so far to make the appropriate adjustment.

Be cautious. Raising the flat beater too high may leave dry ingredients at the bottom of the bowl.

If further information is needed, I would advise you to contact Kitchenaid Customer Service. They may walk through this adjustment through you over the phone and can look into ordering replacement beaters for you also.

Their toll-free telephone number is 1-800-541-6390.

This sounds like an issue of beater to bowl adjustment, which can come out of alignment naturally over time and with use of the machine.

If the flat beater is striking the bottom of your bowl, this may cause the locking mechanism to loosen and may cause the mixing head to "bounce" during use.

Your Use and Care Guide will cover the "beater to bowl adjustment," which you can do at home in a few minutes with a flathead screwdriver.

Hi,

I have the spare part number for the bowl.

KW638821 - bowl - polished - stainless steel
KW672487 - with handles bowl - mirror finish

try to find a store near you to get one.